diff --git a/.gitignore b/.gitignore
index cf36eff..dc1e96e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /po4a-0.45.tar.gz
 /po4a_0.47.orig.tar.gz
+/po4a_0.51.orig.tar.gz
diff --git a/po4a-0.47-Fix-building-on-Perl-without-dot-in-INC.patch b/po4a-0.47-Fix-building-on-Perl-without-dot-in-INC.patch
deleted file mode 100644
index 523b2b6..0000000
--- a/po4a-0.47-Fix-building-on-Perl-without-dot-in-INC.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -up po4a-0.47/Build.PL.orig po4a-0.47/Build.PL
---- po4a-0.47/Build.PL.orig	2017-06-06 10:21:49.923240842 +0200
-+++ po4a-0.47/Build.PL	2017-06-06 10:22:53.154900982 +0200
-@@ -1,6 +1,6 @@
- #!/usr/bin/perl
- 
--use lib q('.');
-+use lib '.';
- use Po4aBuilder;
- 
- my $build = Po4aBuilder->new
diff --git a/po4a.spec b/po4a.spec
index e4e1106..9a0b6ce 100644
--- a/po4a.spec
+++ b/po4a.spec
@@ -6,7 +6,6 @@ License: GPL+
 URL: https://po4a.alioth.debian.org/
 
 Source0: http://ftp.debian.org/debian/pool/main/p/po4a/%{name}_%{version}.orig.tar.gz
-Patch0:  po4a-0.47-Fix-building-on-Perl-without-dot-in-INC.patch
 
 BuildArch: noarch
 BuildRequires: %{_bindir}/xsltproc
@@ -90,7 +89,6 @@ tools on areas where they were not expected like documentation.
 
 %prep
 %setup -q -n %{name}-%{version}
-%patch0 -p1
 
 chmod +x scripts/*
 
diff --git a/sources b/sources
index 0559a14..819a222 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-fdbfe10c43c09bf1ea74ae91b5d82a96  po4a_0.47.orig.tar.gz
+SHA512 (po4a_0.51.orig.tar.gz) = dd4ecf4eab59c41466b11828b7a4e5e06cfa8b8a188f808b05ef5aa163ba463ebf44485225c4bbdefcdd42b56d5956d9bc96c34dba12557f098723b7edde18b6